Rancilio MD-40/50/80 Doser Return Lever Brass doser lever with a molded plastic grip, this is the handle you pull to dispense a dose on Rancilio's MD-series commercial grinders. SPECIFICATIONS Brass with molded plastic grip Rancilio part #: 14705015 COMPATIBILITY Fits: MD-40, MD-50 and MD-80 dosers INSTALLATION Unbolts and rebolts at the doser pivot, straightforward DIY job. PRO TIPS The plastic grip is the wear point on this lever, if the brass arm itself is still straight and sound, that's the giveaway you need this replacement rather than a whole doser rebuild.